Multitool processing valve numerical control double-slider unit head
Technical field:
The utility model relates to a kind of multitool processing valve numerical control double-slider unit head.Mainly be the machining of processing pump valve flange, the valve that the utility model is fit to processing has: gate valve, stop valve, check-valves, butterfly valve, pressure-reducing valve etc. have the valve body piece of flange.
Background technology:
Present domestic pump valve manufacturing enterprise adopts engine lathe usually to the processing of valve part, vertical lathe, the simple nc machine of Digit Control Machine Tool or the transformation of the way of common universal machine is processed valve flange, but Digit Control Machine Tool also has limitation, mainly be that valve body blank dimension and sprue gate height difference are very big, programming brings great difficulty to Digit Control Machine Tool, these lathes are clamped in valve body blank flange one end on the machine chuck when the processing valve body, drive workpiece by chuck and rotate the turning flange, the tune clamping cutting other end after finishing, two end flanges machine in the back processing flange need chuck fixedly special fixture come the clamping valve body, the processing of head flange causes the clamping poor rigidity in carrying out.The shortcoming of valve body conventional machining process is:
(1) workman's clamping workpiece on lathe is consuming time, and potential safety hazard is arranged, and need drive a vehicle or the tailstock auxiliary clamping as the heavy caliber valve body, also needs centering to clamp.
(2) traditional handicraft is to rotate to be principal cutting movement with workpiece, and the very big workpiece rotary speed that causes of centrifugal force is slow, and influences the stability of piece-holder, and needing tailstock to withstand valve body sometimes could process.
(3) each procedure of traditional handicraft all will carry out clamping and correction with valve body, certainly will influence workpiece precision, labor strength, safety like this, reduces production efficiency and product percent of pass.
Need repeatedly feeding just can finish processing when (4) cutting.Pump valve flange turning processing need have multiple operation such as cylindrical, end face, chamfering, endoporus, waterline groove to finish, and the engine lathe knife rest generally can only once mounting four cutter, cause the thick smart cutter of a lot of situations to share one, influence cutter life, and influence the flange surface quality.
The utility model content:
The utility model is between the deficiency of above-mentioned traditional pump valve processing technology, a kind of numerical control double-slider multitool processing dynamics head that provides, and purpose is to improve the clamping technology of workpiece and repeatedly cut the feeding problem.This unit head is to adopt the boring processing technology, cutter rotates to realize principal cutting movement, so but the workpiece clamping is processed at stationary fixture, if can realizing a clamping multiaspect, processes this unit head configuration lathe general utility functions parts NC rotary table.Manufacturing procedure is concentrated, reduced the clamping workpiece number of times, not only can shorten non-cutting time, and be easy to guarantee each surperficial relative positional accuracy of processing in the once mounting.This unit head facing head has disposed double-slider and multitool clamp structure knife rest, make multitool participation cutting in the cutting at one time feeding process, turning can have 6 cuttves to cut simultaneously, and the cutting end face can have 4 cuttves to cut simultaneously and waterline groove and inside and outside circle chamfering can both reach fast and finish; The slide block of this facing head and knife rest all are balanced configurations in addition, make principal cutting movement reach dynamic equilibrium state.Adopt multiple cut can solve repeatedly feeding problem, can improve crudy again, because the valve body manufacturing procedure should be divided into roughing and fine finishining usually, the roughing chipping allowance is big, cutting force is also big, and heat in metal cutting is also higher, after the roughing because internal stress redistribution, make workpiece deformation bigger, thus after the roughing again fine finishining can make workpiece obtain higher precision and roughness.
The technical scheme that realizes above-mentioned purpose is as follows:
Multitool processing valve numerical control double-slider unit head, comprise ram seat 11, side's ram 14, main spindle box 18, differential feed box 19, servomotor 55, facing head 2, main shaft alternating-current variable frequency motor 36, shift fork oil cylinder 29, described side's ram 14 front ends connect facing head 2, ram 14 rear ends, side connect main spindle box 18, main spindle box 18 other ends connect differential feed box 19, differential feed box 19 connects servomotor 55, upper end at main spindle box 18 is connected with main shaft alternating-current variable frequency motor 36 by connected body 35, the center of main shaft is connected to mandrel 13, facing head 2 connects with main shaft 12 location, shift fork oil cylinder 29 also is connected on the main spindle box 18, in the facing head 2 in the heart the symmetry two slide blocks 1 of installation, each symmetry is fixed a knife rest 72 on each slide block 1, knife rest 72 moves along slide block, and knife rest 72 also is symmetrically fixed with two knife rests 69 with facing head 2 rotations on the facing head 2, knife rest 69 also can be mobile at facing head 2, and the line of knife rest 72 is vertical with the line of knife rest 69; Slide block 1 is actively connected on the facing head 2 by wedge 39, pressing plate 38, pressing plate 37, slide block 1 connects with ball wire pole socket 6 location, ball wire pole socket 6 connects with the ball screw nut location, and ball screw 7 usefulness bearings 5 connect with facing head 2, drives slide block during the ball screw rotation and does transverse movement.
Knife rest 72 is done symmetric motion and is used for the turning end face, knife rest 69 is used for turning flange cylindrical, the feed speed of size and end face is controlled by servomotor 55 through slowing down, and slide block 1 in-movement is realized driving by differential feed box 19 by mandrel 13 and the control of movement velocity jointly.
Preferably, fixedly there is skewback 83 knife rest 72 sides, also be connected with push rod 81, fixed block 82, connecting rod 80, push rod 81 on the facing head 2, push rod 81 is movably connected on the facing head, push rod 81 can move up and down, the bottom of push rod 81 and skewback 83 are on a horizontal plane, fixed block 82 is used for fixing push rod 81, be connected with gear 79, tooth bar 77, duplicate gear 76 on the knife rest 69, duplicate gear 76 is connected with tooth bar 77, tooth bar 77 is connected with gear 79, and gear 79 is connected with connecting rod 80, and duplicate gear 76 connects by bearing 78 location.
After knife rest 72 cutting end face operations are finished, side's ram 14 slow astern segment distances, this moment, slide block 1 continuation was laterally mobile, allowing the fixing skewback 83 in knife rest 72 sides promote push rod 81 moves up, fixed block 82 is used for fixing push rod 81, push rod 81 pushes connecting rod 80 and rotates, driven gear 79 rotations, tooth bar 77 is driven mobile by gear 79, duplicate gear 76 usefulness bearings 78 location connect the back by tooth bar 77 driven rotary, facing head 2 connects with main shaft 12 location, slide block 1 is by wedge 39, pressing plate 38, pressing plate 37 is actively connected on the facing head 2, slide block 1 connects with ball wire pole socket 6 location, ball wire pole socket 6 connects with the ball screw nut location, ball screw 7 usefulness bearings 5 connect with facing head 2, do transverse movement thereby ball screw when rotation drives slide block, and slide block 1 in-movement is realized driving by differential feed box 19 by mandrel 13 and the control of movement velocity jointly.
Preferably, have the slide block groove on the facing head 2, slide block 1 is placed in the slide block groove, and the length of slide block 1 and width match with groove on the facing head 2;
The centre of slide block 1 has the locating slot 2-1 of knife rest 72, the both sides symmetric arrangement T type groove 2-2 of locating slot 2-1, has positioning key 72-1 in the middle of the bottom of knife rest 72, the both sides symmetric arrangement T type bolt hole of positioning key 72-1, positioning key 72-1 is placed on and is used for the location in the locating slot 2-1 on the slide block 1, knife rest 72 usefulness T types are bolted on the T type groove 2-2 of slide block 1, and knife rest 72 is mobile together along slide block 1, follows facing head 2 and rotates together;
The locating slot 2-4 that has knife rest 69 on the facing head 2, the both sides symmetric arrangement T type groove 2-3 of locating slot 2-4, has positioning key 69-1 in the middle of the bottom of knife rest 69, the both sides symmetric arrangement T type bolt hole of positioning key 69-1, positioning key 69-1 is placed on and is used for the location in the locating slot 2-4 on the facing head 2, knife rest 69 usefulness T types are bolted on the T type groove 2-3 of facing head 2, and knife rest 69 moves along T type groove, follow facing head 2 and rotate together.
Preferably, side's ram 14 connects by front and back main shaft bearing 8 with internal spindle 12, on side's ram 14 ball wire pole socket 42 is arranged fixedly, on ram seat 11, by bearing 40 ball screw 41 is arranged fixedly, ball wire pole socket 42 connects with ball screw nut, synchronous pulley 67 is fixed on the servomotor 64, servomotor 64 is fixed on the casing 68, with being with 66 synchronously with synchronous pulley 65, synchronous pulley 67 connects, the side's of drive ram 14 moves horizontally and finishes the motion of cutter length feed during ball screw 41 rotations, and main shaft alternating-current variable frequency motor 36 is fixing with main spindle box 18 by connector 35.
Preferably, be provided with high low speed mechanism at main shaft alternating-current variable frequency motor 36 output shafts 30, the high speed rotation of high low speed mechanism is made up of gear 28, gear 32, and low speed rotation is made up of gear 27, gear 31, gear 31 is socketed on the axle 30 with gear 32, is connected with shift fork piece 33 in the shift fork oil cylinder 29.
Side's ram 14 and ram seat 11, ram lid 10 is by adjusting 9 movable connections of wedge, side's ram 14 connects by front and back main shaft bearing 8 with internal spindle 12, on ball wire pole socket 42 side's of being fixed on rams 14, ball screw 41 is fixed on the ram seat 11 by bearing 40, ball wire pole socket 42 connects with ball screw nut, synchronous pulley 67 is fixed on the servomotor 64, servomotor 64 is fixed on the casing 68, with being with 66 synchronously with synchronous pulley 65, synchronous pulley 67 connects, thereby the side's of drive ram 14 moves horizontally and finishes the motion of cutter length feed during ball screw 41 rotations, main shaft alternating-current variable frequency motor 36 is fixing with main spindle box 18 by connector 35, axle 30, axle 25, axle 22, axle sleeve 16 is used bearing 20 respectively, bearing 17, bearing 34, bearing 26 is fixing with main spindle box 18, gear 15, gear 21, gear 23, gear 24, gear 27, gear 28 respectively with axle 22, axle 25, axle sleeve 16 is fixing, axle sleeve 16 connects with main shaft 12, in order to satisfy different processing requests, be provided with high low speed mechanism at main shaft alternating-current variable frequency motor 36 output shafts 30, rotation is by gear 28 at a high speed, gear 32 is formed, low speed rotation is by gear 27, gear 31 is formed, high low speed switches by shift fork oil cylinder 29 through shift fork piece 33 driven gears 31, gear 32 is realized the high low-speed rotation of facing head axle 30 mobile finishing.
Preferably, also have bevel gear 4 in the facing head 2, be socketed with bevel gear 3 on the ball screw 7, mandrel 13 is connected with facing head 2 by bevel gear 4, and bevel gear 4 drives ball screw 7 rotations and makes slide block 1 in-movement.
The utility model can be realized two-axle interlocking processing, also can realize valve body internal and external screw thread machining except the above-mentioned requirements manufacturing procedure.
The utility model adopts modularized design, assembling, detection, easy to maintenance.
The numerical control cutting unit head of a clamping multiaspect processing of the configurable rotary table of the utility model.
Description of drawings:
Fig. 1 is the utility model overall appearance figure
Fig. 2 is the partial enlarged drawing of Fig. 1
Fig. 3 is the partial enlarged drawing of Fig. 1
Fig. 4 is the utility model master cutaway view
Fig. 5 is the partial enlarged drawing of Fig. 4
Fig. 6 is the partial enlarged drawing of Fig. 4
Fig. 7 is the utility model cutaway view of bowing
Fig. 8 is A-A direction cutaway view among Fig. 7
Fig. 9 is turning cutter action front view
Figure 10 is the side view of Fig. 9
Figure 11 is face work cutter action front view
Figure 12 is the side view of Figure 11
Figure 13 is turning cutter action front view
Figure 14 is the side view of Figure 13
Figure 15 is the facing head schematic diagram
Figure number explanation: slide block 1, facing head 2, bevel gear 3, bevel gear 4, bearing 5, ball wire pole socket 6, ball screw 7, bearing 8, adjust wedge 9, ram lid 10, ram seat 11, main shaft 12, mandrel 13, side's ram 14, gear 15, axle sleeve 16, bearing 17, main spindle box 18, differential feed box 19, bearing 20, gear 21, axle 22, gear 23, gear 24, axle 25, bearing 26, gear 27, gear 28, shift fork oil cylinder 29, axle 30, gear 31, gear 32, shift fork piece 33, bearing 34, connected body 35, main shaft alternating-current variable frequency motor 36, pressing plate 37, pressing plate 38, wedge 39, bearing 40, ball screw 41, ball wire pole socket 42, bearing 43, axle 44, bearing 45, gear 46, differential body 47, axle 48, gear 49, gear 50, gear 51, gear 52, bearing 53, case lid 54, servomotor 55, gear 56, bearing 57, bearing 58, gear shaft 59, bearing 60, bearing 61, gear shaft 62, axle sleeve 63, servomotor 64, synchronous pulley 65, be with 66 synchronously, synchronous pulley 67, casing 68, knife rest 69, cutter 70, cutter 71, knife rest 72, cutter 73, knife rest 74, cutter 75, duplicate gear 76, tooth bar 77, bearing 78, gear 79, connecting rod 80, push rod 81, fixed block 82, skewback 83.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described in detail.
The valve of the utility model processing has: gate valve, stop valve, check-valves, butterfly valve, pressure-reducing valve etc., so long as there is valve body piece the utility model of flange layout to process.Except inventive point of the present utility model, remaining technology is same as the prior art.
Multitool processing valve numerical control double-slider unit head, comprise ram seat 11, side's ram 14, facing head 2, slide block 1, main spindle box 18, differential feed box 19, cutter frame mechanism, side's ram 14 is installed on the ram seat 11, side's ram 14 front ends connect facing head 2, cutter frame mechanism comprises knife rest 69, knife rest 72, two slide blocks 1 are installed on the facing head 2, each symmetry is fixed a knife rest 72 and is done symmetric motion and be used for the turning end face on each slide block 1, also be symmetrically fixed with two knife rests 69 on the facing head 2, be used for turning flange cylindrical, the feed speed of size and end face is controlled by servomotor 55 through slowing down, ram 14 rear ends, side connect main spindle box 18, main spindle box 18 other ends connect differential feed box 19, differential feed box 19 connects servomotor 55, upper end at main spindle box 18 is connected with main shaft alternating-current variable frequency motor 36 by connected body 35, the shift fork oil cylinder 29 of the relative side of motor is connected on the main spindle box 18, main shaft 12 side's of passing rams 14, one end of main shaft 12 is connected on the facing head 2, the other end is connected in the main spindle box 18, and the center of main shaft is connected to mandrel 13.
Differential body 47 usefulness bearings 58 are fixing with differential feed box 19, four axles 48 are installed on the differential body 47, four groups of gears, be respectively gear 52, gear 46, gear 49, gear 50, gear shaft 62 usefulness bearings 61 connect with differential feed box 19, gear 59 usefulness bearings 60 connect with gear 62, axle 44 Support Gears 49, gear 50, gear 51, gear 56 is fixing with servomotor 55, servomotor 55 usefulness case lids 54 are fixed on the differential feed box 19, gear 62 connects with axle sleeve 16, gear 59 connects with axle sleeve 63, and the rotating speed of gear 59 is rotating speed and the rotating speed sum of servomotor 55 after gear reduction of facing head 2, and warp beam sleeve 63 again, mandrel 13 passes to bevel gear 4.Bevel gear 3 was used for offsetting facing head 2 by the facing head driven rotary and passed to 59 rotating speed this moment, just bevel gear 4 actual for servomotor 55 by passing to the rotating speed of mandrel 13 after the gear reduction, satisfy mechanism's requirement.
Simultaneously, servomotor 55 by gear 56 and box of tricks with transmission of torque to mandrel 13, drive ball screws 7 rotations by bevel gear 4 again and make slide block 1 in-movement.
This multitool processing valve numerical control double-slider unit head processing technology principle: cutting end face cutter is on knife rest 72, knife rest 72 is installed on the slide block 1, with facing head 2 rotations, finish the end face principal cutting movement, the feed of end face cross cutting is moved by slide block 1 and is finished, and feed is controlled by digital control system by servomotor 55.The turning cutter is fixed on the knife rest 69, and knife rest 69 is connected and fixed at facing head 2 end face T type grooves, and cylindrical straight-cut feed is finished by square ram 14 horizontal movements, and feed is controlled by digital control system by servomotor 64.Mounting cutter on the knife rest.
Has the groove (not shown) on the facing head 2, slide block 1 is placed in the groove, the length of slide block 1 and width match with groove on the facing head 2, the centre of slide block 1 has the locating slot 2-1 of knife rest 72, the both sides symmetric arrangement T type groove 2-2 of locating slot 2-1, has positioning key 72-1 in the middle of the bottom of knife rest 72, the both sides symmetric arrangement T type bolt hole (not shown) of positioning key 72-1, positioning key 72-1 is placed on and is used for the location in the locating slot 2-1 on the slide block 1, knife rest 72 usefulness T type bolt (not shown)s are fixed on the T type groove 2-2 of slide block 1, knife rest 72 is mobile together along slide block 1, follows facing head 2 and rotates together.
The locating slot 2-4 that has knife rest 69 on the facing head 2, the both sides symmetric arrangement T type groove 2-3 of locating slot 2-4, has positioning key 69-1 in the middle of the bottom of knife rest 69, the both sides symmetric arrangement T type bolt hole (not shown) of positioning key 69-1, positioning key 69-1 is placed on and is used for the location in the locating slot 2-4 on the facing head 2, knife rest 69 usefulness T type bolt (not shown)s are fixed on the T type groove 2-3 of facing head 2, follow facing head 2 and rotate together.
Fixedly there is skewback 83 knife rest 72 sides, the bottom of push rod 81 and skewback 83 are on a horizontal plane, the fixing skewback 83 in knife rest 72 sides promotes push rod 81 and moves up, push rod 81 pushes connecting rod 80 and rotates, driven gear 79 rotations, tooth bar 77 is driven mobile by gear 79, duplicate gear 76 connects the back by tooth bar 77 driven rotary by bearing 78 location.
The processing valve numerical control double-slider unit head principal cutting movement of this multitool and feed mechanism motion are described as follows:
Facing head principal cutting movement: pass through gear 31,32,27,24,28,23,21,15 by main shaft alternating-current variable frequency motor 36, drive facing head 2 rotations through axle sleeve 16, main shaft 12, rotating speed is electrodeless variable-speed, by 36 controls of frequency converter drive shaft alternating-current variable frequency motor.
Slide block in-movement: enter box of tricks by gear 56,51 through axle 44 by servomotor 55, by axle 44 driven gears 50,52 rotations, drive differential body 47 rotations by axle 48 this moment, through gear 46, gear shaft 59, axle sleeve 63, mandrel 13, bevel gear 4,3, drive 7 rotations of two ball screws, respectively drive a slide block 1 through ball wire pole socket 6 again and move, thus the in-movement of realization slide block, and translational speed is by 55 controls of driver drives servomotor.
The ram longitudinal feed mechanism: by servomotor 64 by synchronous pulley 67, be with 66 synchronously, synchronous pulley 65 drives ball screws 41 rotations, move horizontally through ball wire pole socket 42 drive side's rams 14 again, because square ram 14, facing head 2, slide block 1 are synchronous moving structure, thereby realize the horizontal feed motion of slide block, translational speed is by 64 controls of driver drives servomotor.
It below only is the preferred embodiment of the utility model embodiment; not in order to limit the utility model embodiment; all within the spirit and principle of the utility model embodiment; any modification of doing, be equal to replacement, improvement etc., all should be included in the protection domain of the utility model embodiment.